Thinking outside the box
indirect Myc modulation in canine B-cell lymphoma
Additional information
Authors
Licenziato L.,
Mazzone E.,
Tarantelli C.,
Accornero P.,
Rinaldi A.,
Divari S.,
Leung W.,
Webb S.,
De Maria R.,
Aresu L.
Type
Journal Article
Year
2024
Language
English
Abstract
B-cell lymphomas (BCL) is the most frequent hematological cancer in dogs. Treatment typically consists of chemotherapy, with CHOP-based protocols. However, outcome remains generally poor, urging the exploration of new therapeutic strategies with a targeted approach. Myc transcription factor plays a crucial role in regulating cellular processes, and its dysregulation is implicated in numerous human and canine malignancies, including canine BCL (cBCL). This study aims to evaluate the efficacy of indirectly inhibiting Myc in cBCL using BI2536 and MZ1 compounds in two in vitro models (CLBL-1 and KLR-1201). Both BI2536 and MZ1, alone and combined, affected cell viability in a significant concentration- and time-dependent manner. Western Blot revealed an upregulation of PLK1 expression in both cell lines upon treatment with BI2536, in association with a reduction in c-Myc protein levels. Conversely, MZ1 led to a decrease in its primary target, BRD4, along with a reduction in c-Myc. Furthermore, BI2536, both alone and in combination with MZ1, induced larger transcriptomic changes in cells compared to MZ1 alone, primarily affecting MYC target genes and genes involved in cell cycle regulation. These data underscore the potential role of Myc as therapeutic target in cBCL, providing a novel approach to indirectly modulate this molecule.
Keywords
Canine B-cell lymphoma, Targeted therapy, Myc, BI2536, MZ1
Journal
Animals
Volume
14
Number ( Month )
10
Pages (or article number)
1466
Diffusion
License
CC BY
Visibility
Public
Status open access
Gold
